code: def __getitem__(self, idx):
      if idx >= len(self):
          raise IndexError("CustomRange index out of range")
      pass
  
file_path: pywick/pywick/datasets/tnt/dataset.py
imports: from torch.utils.data import DataLoader
label_desc: Use image node_id 3 for calling the Dataset obj's underlying member method code with example usage: obj.__getitem__(idx) without return types